/* floating Top button */
#myBtn {
  position: fixed;
  bottom:50px;
  right: 30px;
  z-index: 2;
  font-size: small;
  border: none;
  outline: none;
  background: url('acuarela.png') center no-repeat;
  background-size: contain;
  /*border: 1px solid #4b817e;*/
  color:  #cc0066;
  cursor: pointer;
  padding: 15px;
  border-radius: 4px;
}

#myBtn:hover {
  background-color: rgba(75,129,126,0.2);
}